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Added new USB_DeviceState variable to keep track of the current Device mode USB state.

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Added new Endpoint_ClearStatusStage() convenience function to assist with the status stages of control transfers.

Removed vague USB_IsConnected global - test USB_DeviceState or USB_HostState explicitly to gain previous functionality.

Removed USB_IsSuspended global - test USB_DeviceState against DEVICE_STATE_Suspended instead.

Fixed possible enumeration errors from spinloops which may fail to exit if the USB connection is severed before the exit condition becomes true.
This commit is contained in:
Dean Camera 2009-07-21 13:31:21 +00:00
parent 44179abcf8
commit e071f3897a
58 changed files with 666 additions and 463 deletions
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8
LUFA/Drivers/USB/HighLevel/USBTask.c
View file

@ -33,8 +33,6 @@
#define INCLUDE_FROM_USBTASK_C
#include "USBTask.h"
volatile bool USB_IsSuspended;
volatile bool USB_IsConnected;
volatile bool USB_IsInitialized;
USB_Request_Header_t USB_ControlRequest;
@ -42,6 +40,10 @@ USB_Request_Header_t USB_ControlRequest;
volatile uint8_t USB_HostState;
#endif
#if defined(USB_CAN_BE_DEVICE)
volatile uint8_t USB_DeviceState;
#endif
void USB_USBTask(void)
{
#if defined(USB_HOST_ONLY)
@ -59,7 +61,7 @@ void USB_USBTask(void)
#if defined(USB_CAN_BE_DEVICE)
static void USB_DeviceTask(void)
{
if (USB_IsConnected)
if (USB_DeviceState != DEVICE_STATE_Unattached)
{
uint8_t PrevEndpoint = Endpoint_GetCurrentEndpoint();